Предмет: Алгебра, автор: alax137

В урне находится 20 шаров. Из которых 6 белых шаров, 4 черных шара и остальные красные и зеленые поровну. Найдите вероятность того, что среди отодбранного шара окажется зеленый шар

Ответы

Автор ответа: sofahokage

Ответ:

0,25

Объяснение:

20-(6+4)=10 оставшиеся шары

10:2=5 зелёные шары

5/20=1/4=0,25

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